121307045118 has 192 divisors, whose sum is σ = 302609260800. Its totient is φ = 32229550080.

The previous prime is 121307045117. The next prime is 121307045147. The reversal of 121307045118 is 811540703121.

121307045118 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121307045117) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70980448 + ... + 70982156.

It is an arithmetic number, because the mean of its divisors is an integer number (1576089900).

Almost surely, 2^121307045118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121307045118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151304630400).

121307045118 is an abundant number, since it is smaller than the sum of its proper divisors (181302215682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121307045118 is a wasteful number, since it uses less digits than its factorization.

121307045118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

Adding to 121307045118 its reverse (811540703121), we get a palindrome (932847748239).

The spelling of 121307045118 in words is "one hundred twenty-one billion, three hundred seven million, forty-five thousand, one hundred eighteen".